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New Member

Frame Relay Switching

Let us consider the following setup wherein router-B is acting like a pure Frame Relay Switch.

Router-A connects to router-B. Router-B is connected to Router-C and also to Router-D.

For simplicity, let us assume there is no ip in the entire network and I am asking the following question from VoFR point of view. Let us assume a DLCI-100 for voice starts from router-A.When it reaches router-B, I want to switch this DLCI toward router-C. But if router-C is down, I want this DLCI to be switched to router-D. What I want to know is how to I configure multiple paths for the same DLCI.


Re: Frame Relay Switching

Since there has been no response to your post, it appears to be either too complex or too rare an issue for other forum members to assist you. If you don't get a suitable response to your post, you may wish to review our resources at the online Technical Assistance Center ( or speak with a TAC engineer. You can open a TAC case online at

If anyone else in the forum has some advice, please reply to this thread.

Thank you for posting.

New Member

Re: Frame Relay Switching

I don't know the answer for this either unless there is IP running to bring up back up paths.

Someone from MCI/SPRINT/AT&T Frame side of the house might know?

Any takers, or is the question not a 'router' question, but a Frame-Relay switch question?